1 the reason for his so unhappy
2 not to play beside the river
3 whrther the conference has been put off
4 Have a look at the book
5 whose father is my maths teacher
6 of you to say that
7 how can I get to Guangzhou
8 birst into tears
9 learning how to use the new computer
10 in another word
11 we should hold a basketball game at this Sunday
12 if the book is worth reading
13 I haven't heard from my English friend
14 let someone check it
15 was touched deeply
16 with the development of science
17 let him have a break
18 even if it rains tomorrow
19 so do we
20 are desperate for the results
21 what you need
22 weast time talking to him
23 By the end of
24kept his promise
25 Only by making effort